8690140 has 24 divisors (see below), whose sum is σ = 18879840. Its totient is φ = 3355968.

The previous prime is 8690119. The next prime is 8690173. The reversal of 8690140 is 410968.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8690099 and 8690108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6912 + ... + 8071.

It is an arithmetic number, because the mean of its divisors is an integer number (786660).

Almost surely, 2^8690140 is an apocalyptic number.

It is an amenable number.

8690140 is an abundant number, since it is smaller than the sum of its proper divisors (10189700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8690140 is a wasteful number, since it uses less digits than its factorization.

8690140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15021 (or 15019 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8690140 is about 2947.9043403747. The cubic root of 8690140 is about 205.5932843118.

The spelling of 8690140 in words is "eight million, six hundred ninety thousand, one hundred forty".